2. The abbreviation of three-dimensional space (also known as three-dimensional space, three-dimensional, three-dimensional and "three-dimensional") can refer to the space composed of three dimensions of length, width and height in daily life, and often refers to three-dimensional Euclidean space. For a long time in history, three-dimensional space was regarded as a mathematical model of human living space. Physicists at that time thought that space was flat.

3. The application of R&D and 3.R&D technology has gone through several decades of initial exploration, and has made great breakthroughs in technology maturity, perfection, ease of use, humanization and economy.

4. With the rapid popularization of computer network applications, as far as 3D applications are concerned, it has become a basic computer tool that ordinary college students can easily control, just like computer typing; 3D consumption and use, such as games, movies, buildings, cars, mobile phones, clothes, etc. Making through 3D technology has become a part of the work and life of the general public.